Question

[Groofertje]

When i study the foto (meter2.png) i see a condensator connected to the (i think) green cable just under the ESP. Witch value has it, and how it is connected?.
Can you eventual say what the reason is.

Srr for my very bad english.

[torntrousers]

I'll crack one open tomorrow and let you know

[torntrousers]

There are two bypass capacitors I put across the power supply of the ESP12. The one you mention is a 100uF 6.3v tantalum capacitor connected to the ESP12 GND and 3.3V pins. There is also a 100nf ceramic capacitor in parallel with that. You can see that as the darker red circle at the botom left of the tantalum capacitor.
These capacitors may not be needed. I'd been doing a lot with ESP's using deep sleep and having a power supply with decent bypass capacitors can help make deep sleep wake up more reliable. You could probably leave them out as the 3.3v power supply module is really close to the ESP and already has its own bypass capacitors, or if you've some other value capacitors using them could be fine too. Or use an ESP12S which has more bypass capacitors inside the can so there is less need to add extra ones.

[Groofertje]

Tx for the quick answer and help Guy Dit e-mailbericht en alle documenten die ermee verzonden worden, zijn privé en/of vertrouwelijk, worden u onder alle voorbehoud meegedeeld en zijn uitsluitend bestemd voor gebruik door de persoon of de onderneming waaraan ze geadresseerd zijn. Indien deze e-mail verkeerdelijk bij u terechtkomt, gelieve de afzender te verwittigen en deze bestanden van uw computer te verwijderen. Der Inhalt dieser E-Mail ist vertraulich und oder rechtlich geschützt, und damit ausschließlich für den bezeichneten Adressaten bestimmt. Wenn Sie nicht der vorgesehene Adressat dieser E-Mail oder dessen Vertreter sein sollten, so beachten Sie bitte, dass jede Form der Kenntnisnahme, Veröffentlichung, Vervielfältigung oder Weitergabe des Inhalts dieser E-Mail unzulässig ist. Wir bitten Sie, sich in diesem Fall mit dem Absender der E-Mail in Verbindung zu setzen. The information contained in this e-mail is intended only for the personal and confidential use of the recipient(s) named above. This communication may contain information that is proprietary, privileged or confidential or otherwise legally exempt from disclosure. If the reader of this e-mail is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that you are not authorized to read, print, retain, copy or disseminate this message or any part of it. If you have received this message in error, please notify the sender immediately by E-Mail

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________________________________ Van: Anthony Elder <notifications@github.com> Verzonden: Friday, November 1, 2019 3:42:58 PM Aan: HarringayMakerSpace/WiFiPowerMeter <WiFiPowerMeter@noreply.github.com> CC: Guillaume Swennen <guy_swennen@hotmail.com>; Author <author@noreply.github.com> Onderwerp: Re: [HarringayMakerSpace/WiFiPowerMeter] Question (#2) There are two bypass capacitors I put across the power supply of the ESP12. The one you mention is a 100uF 6.3v tantalum capacitor connected to the ESP12 GND and 3.3V pins. There is also a 100nf ceramic capacitor in parallel with that. You can see that as the darker red circle at the botom left of the tantalum capacitor. These capacitors may not be needed. I'd been doing a lot with ESP's using deep sleep and having a power supply with decent bypass capacitors can help make deep sleep wake up more reliable. You could probably leave them out as the 3.3v power suplly module is really close to the ESP and already has its own bypass capacitors, or if you've some other value capacitors using them could be fine too. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub<#2?email_source=notifications&email_token=AGFNVYSH3RYIAMCEGTDO5OTQRQ57FA5CNFSM4JHPUNQKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEC3DW5A#issuecomment-548813684>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AGFNVYQ3ZE3SPAQLDNLIGFLQRQ57FANCNFSM4JHPUNQA>.